$OpenBSD: patch-src_common_defs_h,v 1.3 2014/04/21 17:40:19 sthen Exp $
http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=2642
--- src/common/defs.h.orig	Sat Dec 14 10:15:06 2013
+++ src/common/defs.h	Mon Apr 21 18:40:02 2014
@@ -133,6 +133,9 @@
 
 #define BUFFSIZE			8192
 
+/* according to RFC 821 1000 characters including CRLF */
+#define MAXSMTPTEXTLEN			1000
+
 #ifndef MAXPATHLEN
 #  define MAXPATHLEN			4095
 #endif
